MicroPython Forum (Archive)

I found the problem.
The CH340 chip, which the D1 card uses, had a problem with the 5.5 kernel module that now uses the CH341.
I upgraded my kernel to 5.6 and even using the CH341 module, communication has improved.

Trying to solve the problem, I installed Ubuntu on a Virtual Machine inside my Arch Linux.
And to my surprise, in Ubuntu, in a Terminal, I ran Picocom, and it worked without problems.
So I think it's not a hardware problem, it could be something with Arch's USB driver.
What can it be then?

Hi! I need help with a problem. I am using a D1 R32 board, it is the one that has the shape identical to an Arduino UNO. I work on Arch Linux, and use Picocom to receive the results of the serial output. Everything was fine, until the exit became unreadable with strange characters. W (6�) cpu_start:...

Wonderful, there are several examples of how to use BTREE.
Thank you, as I always find help here, you are very generous.

Hello I am implementing a database with BTREE on ESP32. I read and reread the documentation and still remained many doubts. I saw that BTREE is very limited. But if anyone has an example could indicate me. I need to know how many records are in the database, and how to delete records per record. Is ...

Thanks, I saw this post.
However this is not what I am looking for, because there are file updates, downloading on github, also making an esp32 be an FTP server.
But what I only want is my ESP32 to download files from an FTP server on the internet, that's all.
That simple.
Does anyone have an example?

Hi!
Would you have any code that would download files from an FTP server?
I've been studying this for a long time and I can't move forward.

Thank

Hi! I searched the forum and elsewhere for OTA documentation for both firmware and code updates, but I didn't find anything that would make me understand how it works. I have never used OTA, so it seems unintelligible to me. Can someone tell me about OTA documentation, or explain to me simply how it...

Thank you for your attention. Helped me a lot. Power is not important as it has the device turned on with vehicle power all the time. So I will start to use the list, because I will have several data, ie several columns for each row, and this will be the best option. It had not occurred to me to sto...

Hello people! I would like you to help me decide which way to use to store temporary data on an ESP32. I will be collecting the GPS location every 5 seconds, and would like to save this data to ESP and after checking the GPRS connection is active, just send it to my webserver. So I guarantee the loc...